Interpreting Javascript from Python

Question

I want to be able to interpret or compile Javascript files, catching errors, etc. from Python programs. Javascript Files use the following syntax for ex.:

var a;
function Mul (){
  prompt(b);
  document.write(a*b);
}

I tried with SpiderMonkey but it seems to be unable to interpret "prompt", "document.write", etc. Help please.

Can u plz tell me which standard of EMACS is that uses prompt and document.write ? — Academia, Jun 02 '12 at 09:38
Yes, that's it. I want to Check, interpret or compile JS Files within Python Programs. — Academia, Jun 02 '12 at 10:02
Dikei, this may be what I'm looking for. I'm gonna read it and try it. Hope works. Thanks a lot. — Academia, Jun 02 '12 at 10:09
possible duplicate of [Call Javascript function from Python](http://stackoverflow.com/questions/8284765/call-javascript-function-from-python) — Quentin, Jun 02 '12 at 10:38

score 1 · Answer 1 · answered Jun 02 '12 at 09:34

Stuff like document.write can't work since SpiderMonkey is not a browser. So there's no document, and no DOM. Likewise, you don't have a window, so no alerts or prompts. All this wouldn't make much sense in a command-line script...

You could build your own DOM parser in Python (assuming you actually have a web page to parse in the first place), and create a document object yourself, but that would probably be a lot of work for very little return.

Interpreting Javascript from Python

1 Answers1